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One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles

A one-pot green sonochemical process assisted by ascorbic acid as the reducing agent to produce highly reduced graphene oxide (rGO) decorated with silver nanoparticles (AgNPs) is demonstrated. A complete removal of oxygen-containing group in the GO sheets was confirmed by no observation of the peak...

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Main Authors: Aziz, N. S. A., Azmi, M. K. N., Hashim, A. M.
Format: Article
Published: Penerbit Universiti Kebangsaan Malaysia 2017
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/75745/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029899576&doi=10.17576%2fjsm-2017-4607-10&partnerID=40&md5=22b6f15ec1d4ca0f39f24ff934ba3abd
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spelling my.utm.757452018-04-30T13:14:03Z http://eprints.utm.my/id/eprint/75745/ One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles Aziz, N. S. A. Azmi, M. K. N. Hashim, A. M. T Technology (General) A one-pot green sonochemical process assisted by ascorbic acid as the reducing agent to produce highly reduced graphene oxide (rGO) decorated with silver nanoparticles (AgNPs) is demonstrated. A complete removal of oxygen-containing group in the GO sheets was confirmed by no observation of the peak corresponds to C-O, C=O and -OH bond. The unexpected decrease of peak intensity corresponds to sp2 hybridized C=C group is explained by a so-called bond polarity effect. The peak observed at ~400 nm seems to show the presence of AgNPs and the red shifting of C=C peak to ~270 nm after the introduction of ascorbic acid indicates the formation of highly reduced GO. The increase of AgNPs size and the crumpled silk-like morphology after the introduction of ascorbic acid also indicate the aggressive reduction of both AgNPs and GO. The increase of ID/IG ratio after the introduction of ascorbic acid seems to indicate the increase of the number of small sp2 domains, the presence of unrepaired defects and the restoration of the sp2 network. This work provides the promising green sonochemical approach by utilizing non-Toxic and environmental-friendly reducing agent to produce highly reduced GO decorated with AgNPs for various applications. Penerbit Universiti Kebangsaan Malaysia 2017 Article PeerReviewed Aziz, N. S. A. and Azmi, M. K. N. and Hashim, A. M. (2017) One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles. Sains Malaysiana, 46 (7). pp. 1083-1088. ISSN 0126-6039 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029899576&doi=10.17576%2fjsm-2017-4607-10&partnerID=40&md5=22b6f15ec1d4ca0f39f24ff934ba3abd
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Aziz, N. S. A.
Azmi, M. K. N.
Hashim, A. M.
One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
description A one-pot green sonochemical process assisted by ascorbic acid as the reducing agent to produce highly reduced graphene oxide (rGO) decorated with silver nanoparticles (AgNPs) is demonstrated. A complete removal of oxygen-containing group in the GO sheets was confirmed by no observation of the peak corresponds to C-O, C=O and -OH bond. The unexpected decrease of peak intensity corresponds to sp2 hybridized C=C group is explained by a so-called bond polarity effect. The peak observed at ~400 nm seems to show the presence of AgNPs and the red shifting of C=C peak to ~270 nm after the introduction of ascorbic acid indicates the formation of highly reduced GO. The increase of AgNPs size and the crumpled silk-like morphology after the introduction of ascorbic acid also indicate the aggressive reduction of both AgNPs and GO. The increase of ID/IG ratio after the introduction of ascorbic acid seems to indicate the increase of the number of small sp2 domains, the presence of unrepaired defects and the restoration of the sp2 network. This work provides the promising green sonochemical approach by utilizing non-Toxic and environmental-friendly reducing agent to produce highly reduced GO decorated with AgNPs for various applications.
format Article
author Aziz, N. S. A.
Azmi, M. K. N.
Hashim, A. M.
author_facet Aziz, N. S. A.
Azmi, M. K. N.
Hashim, A. M.
author_sort Aziz, N. S. A.
title One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
title_short One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
title_full One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
title_fullStr One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
title_full_unstemmed One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
title_sort one-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2017
url http://eprints.utm.my/id/eprint/75745/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029899576&doi=10.17576%2fjsm-2017-4607-10&partnerID=40&md5=22b6f15ec1d4ca0f39f24ff934ba3abd
_version_ 1643657148999139328
score 13.211869

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